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Finding the Fourth Proportional to 22,280.60, 30,746.04 and 12,208.52

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Solution

The fourth proportional to 22,280.60, 30,746.04 and 12,208.52 is: 16,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.60 : 30,746.04 = 12,208.52 : x
  2. Step 2: Convert to fraction form
    22,280.60/30,746.04 = 12,208.52/x
  3. Step 3: Cross multiply
    22,280.60x = 30,746.04 × 12,208.52
  4. Step 4: Simplify right side
    22,280.60x = 375,363,644.26
  5. Step 5: Solve for x
    x = 375,363,644.26/22,280.60
  6. Step 6: Final answer
    x = 16,847.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.